Implemented writefile task

BuildServer/lib/tasks/writefile.js

@@ -0,0 +1,23 @@
+"use strict";
+
+var fs = require('fs');
+var async = require('async');
+var glob = require('glob');
+
+module.exports = function (params, processor) {
+	return {
+		process: function () {
+			var filePath = processor.context.exported + "/" + params.filename;
+			processor.onInfo("Writing to " + filePath);
+
+			fs.writeFile(filePath, params.data, function(err) {
+				if (err) {
+					processor.onError("Unable to write file: " + err);
+				} else {
+					processor.onInfo("Written file");
+				}
+				return processor.done();
+			});
+		}
+	};
+};